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Libraries
asn1c
Commits
2eeeedc2
Commit
2eeeedc2
authored
Feb 18, 2005
by
Lev Walkin
Browse files
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Plain Diff
extensions support
parent
ed19ca0e
Changes
6
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Showing
6 changed files
with
126 additions
and
56 deletions
+126
-56
skeletons/constr_CHOICE.c
skeletons/constr_CHOICE.c
+4
-8
skeletons/constr_SEQUENCE.c
skeletons/constr_SEQUENCE.c
+39
-12
skeletons/constr_SET.c
skeletons/constr_SET.c
+41
-15
skeletons/constr_SET_OF.c
skeletons/constr_SET_OF.c
+3
-7
skeletons/xer_decoder.c
skeletons/xer_decoder.c
+33
-12
skeletons/xer_decoder.h
skeletons/xer_decoder.h
+6
-2
No files found.
skeletons/constr_CHOICE.c
View file @
2eeeedc2
...
...
@@ -569,7 +569,6 @@ CHOICE_decode_xer(asn_codec_ctx_t *opt_codec_ctx, asn_TYPE_descriptor_t *td,
asn_dec_rval_t
rval
;
/* Return value of a decoder */
ssize_t
consumed_myself
=
0
;
/* Consumed bytes from ptr */
int
xer_state
;
/* XER low level parsing context */
int
edx
;
/* Element index */
/*
...
...
@@ -593,7 +592,7 @@ CHOICE_decode_xer(asn_codec_ctx_t *opt_codec_ctx, asn_TYPE_descriptor_t *td,
* Phase 2: Processing inner type.
* Phase 3: Only waiting for closing tag
*/
for
(
xer_state
=
ctx
->
left
,
edx
=
ctx
->
step
;
ctx
->
phase
<=
3
;)
{
for
(
edx
=
ctx
->
step
;
ctx
->
phase
<=
3
;)
{
pxer_chunk_type_e
ch_type
;
/* XER chunk type */
ssize_t
ch_size
;
/* Chunk size */
xer_check_tag_e
tcv
;
/* Tag check value */
...
...
@@ -623,7 +622,7 @@ CHOICE_decode_xer(asn_codec_ctx_t *opt_codec_ctx, asn_TYPE_descriptor_t *td,
elm
->
type
,
memb_ptr2
,
elm
->
name
,
buf_ptr
,
size
);
XER_ADVANCE
(
tmprval
.
consumed
);
ASN_DEBUG
(
"XER/CHOICE: itdf: code=%d
, xs=%d"
,
tmprval
.
code
,
xer_stat
e
);
ASN_DEBUG
(
"XER/CHOICE: itdf: code=%d
"
,
tmprval
.
cod
e
);
if
(
tmprval
.
code
!=
RC_OK
)
RETURN
(
tmprval
.
code
);
assert
(
_fetch_present_idx
(
st
,
...
...
@@ -631,7 +630,6 @@ CHOICE_decode_xer(asn_codec_ctx_t *opt_codec_ctx, asn_TYPE_descriptor_t *td,
/* Record what we've got */
_set_present_idx
(
st
,
specs
->
pres_offset
,
specs
->
pres_size
,
edx
+
1
);
ctx
->
left
=
xer_state
=
0
;
/* New, clean state */
ctx
->
phase
=
3
;
/* Fall through */
}
...
...
@@ -639,12 +637,10 @@ CHOICE_decode_xer(asn_codec_ctx_t *opt_codec_ctx, asn_TYPE_descriptor_t *td,
/*
* Get the next part of the XML stream.
*/
ch_size
=
xer_next_token
(
&
xer_state
,
buf_ptr
,
size
,
&
ch_type
);
ch_size
=
xer_next_token
(
buf_ptr
,
size
,
&
ch_type
);
switch
(
ch_size
)
{
case
-
1
:
RETURN
(
RC_FAIL
);
case
0
:
ctx
->
left
=
xer_state
;
RETURN
(
RC_WMORE
);
case
0
:
RETURN
(
RC_WMORE
);
default:
switch
(
ch_type
)
{
case
PXER_COMMENT
:
/* Got XML comment */
...
...
skeletons/constr_SEQUENCE.c
View file @
2eeeedc2
...
...
@@ -621,7 +621,6 @@ SEQUENCE_decode_xer(asn_codec_ctx_t *opt_codec_ctx, asn_TYPE_descriptor_t *td,
asn_dec_rval_t
rval
;
/* Return value from a decoder */
ssize_t
consumed_myself
=
0
;
/* Consumed bytes from ptr */
int
xer_state
;
/* XER low level parsing context */
int
edx
;
/* Element index */
int
edx_end
;
...
...
@@ -644,8 +643,10 @@ SEQUENCE_decode_xer(asn_codec_ctx_t *opt_codec_ctx, asn_TYPE_descriptor_t *td,
* Phase 0: Check that the opening tag matches our expectations.
* Phase 1: Processing body and reacting on closing tag.
* Phase 2: Processing inner type.
* Phase 3: Skipping unknown extensions.
* Phase 4: PHASED OUT
*/
for
(
xer_state
=
ctx
->
left
,
edx
=
ctx
->
step
;
ctx
->
phase
<=
2
;)
{
for
(
edx
=
ctx
->
step
;
ctx
->
phase
<=
3
;)
{
pxer_chunk_type_e
ch_type
;
/* XER chunk type */
ssize_t
ch_size
;
/* Chunk size */
xer_check_tag_e
tcv
;
/* Tag check value */
...
...
@@ -679,7 +680,6 @@ SEQUENCE_decode_xer(asn_codec_ctx_t *opt_codec_ctx, asn_TYPE_descriptor_t *td,
if
(
tmprval
.
code
!=
RC_OK
)
RETURN
(
tmprval
.
code
);
ctx
->
phase
=
1
;
/* Back to body processing */
ctx
->
left
=
xer_state
=
0
;
/* New, clean state */
ctx
->
step
=
++
edx
;
ASN_DEBUG
(
"XER/SEQUENCE phase => %d, step => %d"
,
ctx
->
phase
,
ctx
->
step
);
...
...
@@ -689,12 +689,10 @@ SEQUENCE_decode_xer(asn_codec_ctx_t *opt_codec_ctx, asn_TYPE_descriptor_t *td,
/*
* Get the next part of the XML stream.
*/
ch_size
=
xer_next_token
(
&
xer_state
,
buf_ptr
,
size
,
&
ch_type
);
ch_size
=
xer_next_token
(
buf_ptr
,
size
,
&
ch_type
);
switch
(
ch_size
)
{
case
-
1
:
RETURN
(
RC_FAIL
);
case
0
:
ctx
->
left
=
xer_state
;
RETURN
(
RC_WMORE
);
case
0
:
RETURN
(
RC_WMORE
);
default:
switch
(
ch_type
)
{
case
PXER_COMMENT
:
/* Got XML comment */
...
...
@@ -708,6 +706,26 @@ SEQUENCE_decode_xer(asn_codec_ctx_t *opt_codec_ctx, asn_TYPE_descriptor_t *td,
tcv
=
xer_check_tag
(
buf_ptr
,
ch_size
,
xml_tag
);
ASN_DEBUG
(
"XER/SEQUENCE: tcv = %d, ph=%d"
,
tcv
,
ctx
->
phase
);
/* Skip the extensions section */
if
(
ctx
->
phase
==
3
)
{
switch
(
xer_skip_unknown
(
tcv
,
&
ctx
->
left
))
{
case
-
1
:
ctx
->
phase
=
4
;
RETURN
(
RC_FAIL
);
case
0
:
XER_ADVANCE
(
ch_size
);
continue
;
case
1
:
XER_ADVANCE
(
ch_size
);
ctx
->
phase
=
1
;
continue
;
case
2
:
ctx
->
phase
=
1
;
break
;
}
}
switch
(
tcv
)
{
case
XCT_CLOSING
:
if
(
ctx
->
phase
==
0
)
break
;
...
...
@@ -727,7 +745,7 @@ SEQUENCE_decode_xer(asn_codec_ctx_t *opt_codec_ctx, asn_TYPE_descriptor_t *td,
>
td
->
elements_count
)
)
{
XER_ADVANCE
(
ch_size
);
ctx
->
phase
=
3
;
/* Phase out */
ctx
->
phase
=
4
;
/* Phase out */
RETURN
(
RC_OK
);
}
else
{
ASN_DEBUG
(
"Premature end of XER SEQUENCE"
);
...
...
@@ -784,11 +802,20 @@ SEQUENCE_decode_xer(asn_codec_ctx_t *opt_codec_ctx, asn_TYPE_descriptor_t *td,
/* It is expected extension */
if
(
IN_EXTENSION_GROUP
(
specs
,
edx
+
elements
[
edx
].
optional
))
{
ASN_DEBUG
(
"Got anticipated extension at %d, "
"but NOT IMPLEMENTED YET"
,
edx
);
ASN_DEBUG
(
"Got anticipated extension at %d"
,
edx
);
/*
* TODO: implement skipping of extensions
* Check for (XCT_BOTH or XCT_UNKNOWN_BO)
* By using a mask. Only record a pure
* <opening> tags.
*/
if
(
tcv
&
XCT_CLOSING
)
{
/* Found </extension> without body */
}
else
{
ctx
->
left
=
1
;
ctx
->
phase
=
3
;
/* Skip ...'s */
}
XER_ADVANCE
(
ch_size
);
continue
;
}
/* Fall through */
...
...
@@ -800,7 +827,7 @@ SEQUENCE_decode_xer(asn_codec_ctx_t *opt_codec_ctx, asn_TYPE_descriptor_t *td,
break
;
}
ctx
->
phase
=
3
;
/* "Phase out" on hard failure */
ctx
->
phase
=
4
;
/* "Phase out" on hard failure */
RETURN
(
RC_FAIL
);
}
...
...
skeletons/constr_SET.c
View file @
2eeeedc2
...
...
@@ -600,7 +600,6 @@ SET_decode_xer(asn_codec_ctx_t *opt_codec_ctx, asn_TYPE_descriptor_t *td,
asn_dec_rval_t
rval
;
/* Return value from a decoder */
ssize_t
consumed_myself
=
0
;
/* Consumed bytes from ptr */
int
xer_state
;
/* XER low level parsing context */
int
edx
;
/* Element index */
/*
...
...
@@ -621,8 +620,10 @@ SET_decode_xer(asn_codec_ctx_t *opt_codec_ctx, asn_TYPE_descriptor_t *td,
* Phase 0: Check that the opening tag matches our expectations.
* Phase 1: Processing body and reacting on closing tag.
* Phase 2: Processing inner type.
* Phase 3: Skipping unknown extensions.
* Phase 4: PHASED OUT
*/
for
(
xer_state
=
ctx
->
left
,
edx
=
ctx
->
step
;
ctx
->
phase
<=
2
;)
{
for
(
edx
=
ctx
->
step
;
ctx
->
phase
<=
3
;)
{
pxer_chunk_type_e
ch_type
;
/* XER chunk type */
ssize_t
ch_size
;
/* Chunk size */
xer_check_tag_e
tcv
;
/* Tag check value */
...
...
@@ -662,7 +663,6 @@ SET_decode_xer(asn_codec_ctx_t *opt_codec_ctx, asn_TYPE_descriptor_t *td,
if
(
tmprval
.
code
!=
RC_OK
)
RETURN
(
tmprval
.
code
);
ctx
->
phase
=
1
;
/* Back to body processing */
ctx
->
left
=
xer_state
=
0
;
/* New, clean state */
ASN_SET_MKPRESENT
((
char
*
)
st
+
specs
->
pres_offset
,
edx
);
ASN_DEBUG
(
"XER/SET phase => %d"
,
ctx
->
phase
);
/* Fall through */
...
...
@@ -671,12 +671,10 @@ SET_decode_xer(asn_codec_ctx_t *opt_codec_ctx, asn_TYPE_descriptor_t *td,
/*
* Get the next part of the XML stream.
*/
ch_size
=
xer_next_token
(
&
xer_state
,
buf_ptr
,
size
,
&
ch_type
);
ch_size
=
xer_next_token
(
buf_ptr
,
size
,
&
ch_type
);
switch
(
ch_size
)
{
case
-
1
:
RETURN
(
RC_FAIL
);
case
0
:
ctx
->
left
=
xer_state
;
RETURN
(
RC_WMORE
);
case
0
:
RETURN
(
RC_WMORE
);
default:
switch
(
ch_type
)
{
case
PXER_COMMENT
:
/* Got XML comment */
...
...
@@ -690,6 +688,26 @@ SET_decode_xer(asn_codec_ctx_t *opt_codec_ctx, asn_TYPE_descriptor_t *td,
tcv
=
xer_check_tag
(
buf_ptr
,
ch_size
,
xml_tag
);
ASN_DEBUG
(
"XER/SET: tcv = %d, ph=%d"
,
tcv
,
ctx
->
phase
);
/* Skip the extensions section */
if
(
ctx
->
phase
==
3
)
{
switch
(
xer_skip_unknown
(
tcv
,
&
ctx
->
left
))
{
case
-
1
:
ctx
->
phase
=
4
;
RETURN
(
RC_FAIL
);
case
0
:
XER_ADVANCE
(
ch_size
);
continue
;
case
1
:
XER_ADVANCE
(
ch_size
);
ctx
->
phase
=
1
;
continue
;
case
2
:
ctx
->
phase
=
1
;
break
;
}
}
switch
(
tcv
)
{
case
XCT_CLOSING
:
if
(
ctx
->
phase
==
0
)
break
;
...
...
@@ -699,7 +717,7 @@ SET_decode_xer(asn_codec_ctx_t *opt_codec_ctx, asn_TYPE_descriptor_t *td,
if
(
ctx
->
phase
==
0
)
{
if
(
_SET_is_populated
(
td
,
st
))
{
XER_ADVANCE
(
ch_size
);
ctx
->
phase
=
3
;
/* Phase out */
ctx
->
phase
=
4
;
/* Phase out */
RETURN
(
RC_OK
);
}
else
{
ASN_DEBUG
(
"Premature end of XER SET"
);
...
...
@@ -725,9 +743,8 @@ SET_decode_xer(asn_codec_ctx_t *opt_codec_ctx, asn_TYPE_descriptor_t *td,
* Search which member corresponds to this tag.
*/
for
(
edx
=
0
;
edx
<
td
->
elements_count
;
edx
++
)
{
elm
=
&
elements
[
edx
];
tcv
=
xer_check_tag
(
buf_ptr
,
ch_size
,
elm
->
name
);
switch
(
tcv
)
{
switch
(
xer_check_tag
(
buf_ptr
,
ch_size
,
elements
[
edx
].
name
))
{
case
XCT_BOTH
:
case
XCT_OPENING
:
/*
...
...
@@ -750,11 +767,20 @@ SET_decode_xer(asn_codec_ctx_t *opt_codec_ctx, asn_TYPE_descriptor_t *td,
/* It is expected extension */
if
(
specs
->
extensible
)
{
ASN_DEBUG
(
"Got anticipated extension, "
"but NOT IMPLEMENTED YET"
);
ASN_DEBUG
(
"Got anticipated extension"
);
/*
* TODO: implement skipping of extensions
* Check for (XCT_BOTH or XCT_UNKNOWN_BO)
* By using a mask. Only record a pure
* <opening> tags.
*/
if
(
tcv
&
XCT_CLOSING
)
{
/* Found </extension> without body */
}
else
{
ctx
->
left
=
1
;
ctx
->
phase
=
3
;
/* Skip ...'s */
}
XER_ADVANCE
(
ch_size
);
continue
;
}
/* Fall through */
...
...
@@ -766,7 +792,7 @@ SET_decode_xer(asn_codec_ctx_t *opt_codec_ctx, asn_TYPE_descriptor_t *td,
break
;
}
ctx
->
phase
=
3
;
/* "Phase out" on hard failure */
ctx
->
phase
=
4
;
/* "Phase out" on hard failure */
RETURN
(
RC_FAIL
);
}
...
...
skeletons/constr_SET_OF.c
View file @
2eeeedc2
...
...
@@ -482,7 +482,6 @@ SET_OF_decode_xer(asn_codec_ctx_t *opt_codec_ctx, asn_TYPE_descriptor_t *td,
asn_dec_rval_t
rval
;
/* Return value from a decoder */
ssize_t
consumed_myself
=
0
;
/* Consumed bytes from ptr */
int
xer_state
;
/* XER low level parsing context */
/*
* Create the target structure if it is not present already.
...
...
@@ -503,7 +502,7 @@ SET_OF_decode_xer(asn_codec_ctx_t *opt_codec_ctx, asn_TYPE_descriptor_t *td,
* Phase 1: Processing body and reacting on closing tag.
* Phase 2: Processing inner type.
*/
for
(
xer_state
=
ctx
->
left
;
ctx
->
phase
<=
2
;)
{
for
(;
ctx
->
phase
<=
2
;)
{
pxer_chunk_type_e
ch_type
;
/* XER chunk type */
ssize_t
ch_size
;
/* Chunk size */
xer_check_tag_e
tcv
;
/* Tag check value */
...
...
@@ -530,7 +529,6 @@ SET_OF_decode_xer(asn_codec_ctx_t *opt_codec_ctx, asn_TYPE_descriptor_t *td,
RETURN
(
tmprval
.
code
);
}
ctx
->
phase
=
1
;
/* Back to body processing */
ctx
->
left
=
xer_state
=
0
;
/* New, clean state */
ASN_DEBUG
(
"XER/SET OF phase => %d"
,
ctx
->
phase
);
/* Fall through */
}
...
...
@@ -538,12 +536,10 @@ SET_OF_decode_xer(asn_codec_ctx_t *opt_codec_ctx, asn_TYPE_descriptor_t *td,
/*
* Get the next part of the XML stream.
*/
ch_size
=
xer_next_token
(
&
xer_state
,
buf_ptr
,
size
,
&
ch_type
);
ch_size
=
xer_next_token
(
buf_ptr
,
size
,
&
ch_type
);
switch
(
ch_size
)
{
case
-
1
:
RETURN
(
RC_FAIL
);
case
0
:
ctx
->
left
=
xer_state
;
RETURN
(
RC_WMORE
);
case
0
:
RETURN
(
RC_WMORE
);
default:
switch
(
ch_type
)
{
case
PXER_COMMENT
:
/* Got XML comment */
...
...
skeletons/xer_decoder.c
View file @
2eeeedc2
...
...
@@ -51,14 +51,13 @@ xer__token_cb(pxml_chunk_type_e type, void *_chunk_data, size_t _chunk_size, voi
* Fetch the next token from the XER/XML stream.
*/
ssize_t
xer_next_token
(
int
*
stateContext
,
void
*
buffer
,
size_t
size
,
pxer_chunk_type_e
*
ch_type
)
{
xer_next_token
(
void
*
buffer
,
size_t
size
,
pxer_chunk_type_e
*
ch_type
)
{
struct
xer__cb_arg
arg
;
int
stateContext
=
0
;
ssize_t
ret
;
int
new_stateContext
=
*
stateContext
;
arg
.
callback_not_invoked
=
1
;
ret
=
pxml_parse
(
&
new_
stateContext
,
buffer
,
size
,
xer__token_cb
,
&
arg
);
ret
=
pxml_parse
(
&
stateContext
,
buffer
,
size
,
xer__token_cb
,
&
arg
);
if
(
ret
<
0
)
return
-
1
;
if
(
arg
.
callback_not_invoked
)
{
assert
(
ret
==
0
);
/* No data was consumed */
...
...
@@ -66,6 +65,7 @@ xer_next_token(int *stateContext, void *buffer, size_t size,
}
else
{
assert
(
arg
.
chunk_size
);
assert
(
arg
.
chunk_buf
==
buffer
);
assert
(
stateContext
==
0
);
}
/*
...
...
@@ -85,7 +85,6 @@ xer_next_token(int *stateContext, void *buffer, size_t size,
break
;
}
*
stateContext
=
new_stateContext
;
/* Update the context */
return
arg
.
chunk_size
;
}
...
...
@@ -169,10 +168,8 @@ xer_check_tag(const void *buf_ptr, int size, const char *need_tag) {
(struct_key, chunk_buf, chunk_size, \
(size_t)chunk_size < size); \
if(converted_size == -1) RETURN(RC_FAIL); \
if(converted_size == 0 && size == chunk_size) { \
ctx->step = xer_state; \
if(converted_size == 0 && size == chunk_size) \
RETURN(RC_WMORE); \
} \
chunk_size = converted_size; \
} while(0)
#define XER_GOT_EMPTY() do { \
...
...
@@ -198,7 +195,6 @@ xer_decode_general(asn_codec_ctx_t *opt_codec_ctx,
asn_dec_rval_t
rval
;
ssize_t
consumed_myself
=
0
;
int
xer_state
;
/* XER low level parsing context */
(
void
)
opt_codec_ctx
;
...
...
@@ -208,7 +204,7 @@ xer_decode_general(asn_codec_ctx_t *opt_codec_ctx,
* Phase 1: Processing body and reacting on closing tag.
*/
if
(
ctx
->
phase
>
1
)
RETURN
(
RC_FAIL
);
for
(
xer_state
=
ctx
->
step
;;)
{
for
(;;)
{
pxer_chunk_type_e
ch_type
;
/* XER chunk type */
ssize_t
ch_size
;
/* Chunk size */
xer_check_tag_e
tcv
;
/* Tag check value */
...
...
@@ -216,11 +212,10 @@ xer_decode_general(asn_codec_ctx_t *opt_codec_ctx,
/*
* Get the next part of the XML stream.
*/
ch_size
=
xer_next_token
(
&
xer_state
,
buf_ptr
,
size
,
&
ch_type
);
ch_size
=
xer_next_token
(
buf_ptr
,
size
,
&
ch_type
);
switch
(
ch_size
)
{
case
-
1
:
RETURN
(
RC_FAIL
);
case
0
:
ctx
->
step
=
xer_state
;
RETURN
(
RC_WMORE
);
default:
switch
(
ch_type
)
{
...
...
@@ -320,3 +315,29 @@ xer_is_whitespace(void *chunk_buf, size_t chunk_size) {
return
1
;
/* All whitespace */
}
/*
* This is a vastly simplified, non-validating XML tree skipper.
*/
int
xer_skip_unknown
(
xer_check_tag_e
tcv
,
ber_tlv_len_t
*
depth
)
{
assert
(
*
depth
>
0
);
switch
(
tcv
)
{
case
XCT_BOTH
:
case
XCT_UNKNOWN_BO
:
/* These negate each other. */
return
0
;
case
XCT_OPENING
:
case
XCT_UNKNOWN_OP
:
++
(
*
depth
);
return
0
;
case
XCT_CLOSING
:
case
XCT_UNKNOWN_CL
:
if
(
--
(
*
depth
)
==
0
)
return
(
tcv
==
XCT_CLOSING
)
?
2
:
1
;
return
0
;
default:
return
-
1
;
}
}
skeletons/xer_decoder.h
View file @
2eeeedc2
...
...
@@ -63,8 +63,7 @@ asn_dec_rval_t xer_decode_general(asn_codec_ctx_t *opt_codec_ctx,
PXER_TEXT
,
/* Plain text between XER tags */
PXER_COMMENT
,
/* A comment, may be part of */
}
pxer_chunk_type_e
;
ssize_t
xer_next_token
(
int
*
stateContext
,
void
*
buffer
,
size_t
size
,
pxer_chunk_type_e
*
_ch_type
);
ssize_t
xer_next_token
(
void
*
buffer
,
size_t
size
,
pxer_chunk_type_e
*
_ch_type
);
/*
* This function checks the buffer against the tag name is expected to occur.
...
...
@@ -90,4 +89,9 @@ xer_check_tag_e xer_check_tag(const void *buf_ptr, int size,
*/
int
xer_is_whitespace
(
void
*
chunk_buf
,
size_t
chunk_size
);
/*
* Skip the series of anticipated extensions.
*/
int
xer_skip_unknown
(
xer_check_tag_e
tcv
,
ber_tlv_len_t
*
depth
);
#endif
/* _XER_DECODER_H_ */
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